Final design of the ITER bolometer first plasma component: cable installation template

2021 ◽  
Vol 16 (12) ◽  
pp. C12021
Author(s):  
F. Penzel ◽  
A. Pataki ◽  
H. Meister ◽  
L.C. Ingesson ◽  
U. Walach ◽  
...  

Abstract The ITER bolometer cable installation template is a first plasma component which main function is to provide a temporary fixation of the mineral insulated cables and to protect them through first plasma operation inside the vacuum vessel until the final bolometer cameras are installed in the second assembly phase. In this paper, the final design of the cable installation template will be presented, the assembly procedures and important functional design details in order to be compliant with its interfaces, the vacuum vessel, the flux loops, the electrical services, the first plasma components and the assembly. Requirements that drive the design will be explained, along with the technical solutions chosen to fulfill them. Important sub-components will be presented in more detail, such as the boss fixation, which will compensate geometrical uncertainties of the as-built boss positioning, as well as the mineral insulated cable holder, which will prepare the electrical termination and facilitate the installation of final vacuum vessel cameras during the second assembly phase of ITER. Additionally, the step-by-step assembly plan agreed with the team of ITER machine assembly and tooling will be described. A custom developed boss welding tool will be described as well. The system load specifications applicable for this first plasma component will be presented as well and an overview of the structural integrity analysis report will be given. It will be shown that most loads on the component are very limited and there is no risk of structural failure or loss of relevant system functions. The paper concludes with a summary of the work and an overview of the procurement and delivery status to ITER.

2018 ◽  
Vol 135 ◽  
pp. 228-233
Author(s):  
Songke Wang ◽  
Jean-Marc Martinez ◽  
Tyge Schioler ◽  
Olivier Tailhardat ◽  
Robin Le Barbier ◽  
...  

2018 ◽  
Vol 133 ◽  
pp. 157-162
Author(s):  
Chengzhi Cao ◽  
Yudong Pan ◽  
Tao Jiang ◽  
Bo Li ◽  
Wei Li

Author(s):  
Yu. Utin ◽  
A. Alekseev ◽  
C. Sborchia ◽  
C. Choi ◽  
H. Ahn ◽  
...  
Keyword(s):  

2018 ◽  
Vol 42 (4) ◽  
pp. 792-804 ◽  
Author(s):  
Mohamed Ali Bouaziz ◽  
Mohamed Amine Guidara ◽  
Christian Schmitt ◽  
Ezzeddine Hadj-Taïeb ◽  
Zitouni Azari ◽  
...  

Author(s):  
Michael S. L. Hollis

Abstract The U.S. Army Armament Research. Development, and Engineering Center (ARDEC) recently expressed a need for a tank-cannon-launched training projectile with reduced penetration capability. The expressed primary design goals for this projectile were to minimize the probability of personnel injury and materiel loss in the event of an accidental impact during a training exercise. In order to meet these design goals, the solid-steel flight body of a current kinetic energy (KE) training projectile, the M865IP, was replaced with a hollow aluminum configuration. Because of the incorporation of aluminum, the structural integrity of the entire projectile during launch was put in question. Thus, a thorough stress analysis of the new design was conducted to alleviate concerns about its structural integrity. Two-dimensional, axisymmetric, quasi-static stress analyses were performed on two new KE training projectile designs. The first analysis indicated that structural failure was possible in the aft portion of the projectile due to compressive loading by the gun gases. Structural failure in this case would be circumferential yielding of the hollow flight body. The aft portion of the round was redesigned, and subsequent stress analysis showed the possibility of structural failure to be resolved. The finite-element modeling approach, the applied boundary conditions, and the results of the stress analyses conducted, based on use of the von Mises failure criterion, will be discussed in detail.


2019 ◽  
Vol 2 (2) ◽  
pp. 94
Author(s):  
Hari Santoso Wibowo ◽  
Shokiful Aziz ◽  
Bambang Subandi

ABSTRACTThe function of the mosque in the history of its emergence is indeed not merely for "the place of prostration" as it literally means, but it has many functions. The mosque has another main function which is as a place of worship in preaching the values of Islam in people's lives. One form of syi'ar that can be performed in a mosque is the Friday Prayer. The purpose of this research is to describe the production management process of the Friday sermon program and the object of the Al Akbar National Mosque in Surabaya. This research uses a qualitative method with a Case Study approach. This study uses data collection techniques through interviews, observation and documentation. The data obtained came from the Chairman of Takmir / Managing Director, Head of Da'wah Division and several parties expected to be related to the program. Implementation of production management in the preparation of the Friday sermon program through several stages including the search for ideas through internal deliberations of the directorate of Imarah and the field of Da'wah, Selection of the preacher through qualification standards, Khatib Testing and Evaluation, the design of the sermon, the final design of the sermon.ABSTRAKFungsi masjid dalam sejarah kemunculannya, memang tidak sekedar untuk “tempat sujud” sebagaimana makna harfiahnya, tetapi memiliki banyak fungsi. masjid memiliki fungsi utama lainnya yaitu sebagai tempat syiar dalam mendakwahkan nilai – nilai Islam dalam kehidupan masyarakat. Salah satu bentuk syi’ar yang bisa dilaksanakan di masjid adalah shalat Jum’at. Tujuan dari penelitian ini ialah untuk menggambarkan proses manajemen produksi program khutbah Jum’at dan yang menjadi objeknya Masjid Nasional Al Akbar Surabaya. Penelitian ini menggunakan metode kualitatif dengan pendekatan Studi Kasus. Penelitian ini menggunakan teknik pengumpulan data melalui wawancara, observasi dan dokumentasi. Data yang diperoleh berasal dari Ketua Takmir/Direktur Utama, Kepala Bidang Dakwah  dan beberapa pihak yang diperkirakan terkait dengan program tersebut. Implemantasi manajemen produksi pada penyusunan progam khutbah jumat melalui beberapa tahapan diantaranya pencarian gagasan melalui musyawarah internal direktorat Imarah dan bidang Dakwah, Seleksi Khatib melalui standar kualifikasi, Pengujian dan Evaluasi Khatib, Desain khutbah, Desain akhir khutbah.


Author(s):  
Yujin Wang ◽  
DeZhong Wang ◽  
Junlian Yin ◽  
Yaoyu Hu

The flywheel of latest coolant pump provides high inertia to ensure a slow decrease in coolant flow to prevent fuel damage after the loss of power. Flywheel comprises a hub, twelve tungsten alloy blocks and a retainer ring shrink-fit assembled on the outer surface of blocks. In the structural integrity analysis, the shrinkage load due to shrink-fit and the centrifugal load due to rotation are considered, so the wall thickness of retainer ring and the magnitude of shrink-fit are key variables. In particular, these variables will change the flywheel running state. This paper considers the influence of these variables, we employ Latin hypercube design to obtain the response surface model and analyze the influence of these variables. Finally we obtain the magnitude of wall thickness of retainer ring and the range of shrink-fit.


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